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2015-05-06libata: Fix sysfs documentation bugMartin K. Petersen
forced_unqueued indicates that a drive's queued DSM support is broken. Update sysfs ABI documentation accordingly. Reported-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2015-05-05libata: Expose TRIM capability in sysfsMartin K. Petersen
Create a sysfs "trim" attribute for each ata_device that displays whether DSM TRIM is "unsupported", "unqueued", "forced_unqueued" (blacklisted) or "queued". Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Tejun Heo <tj@kernel.org>
2010-10-21[libata] Add ATA transport classGwendal Grignou
This is a scheleton for libata transport class. All information is read only, exporting information from libata: - ata_port class: one per ATA port - ata_link class: one per ATA port or 15 for SATA Port Multiplier - ata_device class: up to 2 for PATA link, usually one for SATA. Signed-off-by: Gwendal Grignou <gwendal@google.com> Reviewed-by: Grant Grundler <grundler@google.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>